In normal cells, MLL combines with four proteins that comprise the W-RAD group to create a molecular switch that controls DNA packaging events required to form white blood cells.

在正常细胞中，MLL与其他四种蛋白联合组成了W-RAD复合体，从而形成了在白细胞形成中所需的一种控制DNA组合的分子开关。

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Based on that, the relationships between the W-polynomial of a polyhedral graph and the HOMFLY polynomials of four kinds of polyhedral links are established.

以此为基础，我们建立了一个多面体图的W -多项式和四类链环的HOMFLY多项式之间的关系。

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While it didn't actually count as a W in this season's win column, of course, the deal was victorious as it gave Los Angeles the player that its playoff hopes would orbit around four seasons later.

当然这不会正式被算在这个赛季德胜利场数上，但是这次交易是胜利的，它给了咯杉机一个打入季候赛希望的球员，一个在4个赛季之后球队可以围绕着的球员。

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For the first time the W.H.O.raised its alert level from phase four to phase five on April twenty-ninth.

VOA: special.2009.05.06

The creation of the new naming system is marked by the release of four new GALAXY smartphone, the GALAXY W, GALAXY M Pro, GALAXY Y and GALAXY Y Pro, all of which run on the powerful Android 2.3 Gingerbread operating systems.

ENGADGET: Samsung debuts new Galaxy lineup, refines naming strategy along the way

The team of surgeons rehearsed the procedure on cadaver arms four times over the past 18 months, said lead surgeon Dr. W.P.

CNN: Iraq vet undergoes successful double-arm transplant

And no American leader has been happier to embrace that dictum than George W. Bush in the past four months.

NPR: Bush Banks on Elections at Home, Abroad